Vacuum cleaner



FIG. 1 is a front elevational view of a vacuum cleaner showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a front, left, top perspective view thereof.

The electric cord is shown broken away in FIGS. 2-6 for ease of illustration and is understood to represent indeterminate length. 

The ornamental design for vacuum cleaner, as shown and described. 